From: Eric Dumazet <eric.dumazet@gmail.com>
To: Shawn Lu <shawn.lu@ericsson.com>
Cc: davem@davemloft.net, netdev@vger.kernel.org, xiaoclu@gmail.com
Subject: Re: [PATCH] tcp: RST: binding oif to iif for tcp v4
Date: Fri, 03 Feb 2012 22:31:59 +0100 [thread overview]
Message-ID: <1328304719.2480.5.camel@edumazet-laptop> (raw)
In-Reply-To: <1328300212-18836-1-git-send-email-shawn.lu@ericsson.com>
Le vendredi 03 février 2012 à 12:16 -0800, Shawn Lu a écrit :
> Binding RST packet outgoing interface to incomming interface
> for tcp v4. This has few benefits:
> 1. tcp_v6_send_reset already did that.
I dont think so. ipv6 makes no special provision for RST.
> 2. This helps tcp connect with SO_BINDTODEVICE set. When connection
> is lost, we still able to sending out RST using same interface.
I dont understand this.
> 3. limit RST traffic in ingress interface reduce the impact of
> RST attack.
>
I dont understand this.
Me confused.
Why RST are special and should bypass/force routing decisions ?
This is going to break some setups.
next prev parent reply other threads:[~2012-02-03 21:32 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-03 20:16 [PATCH] tcp: RST: binding oif to iif for tcp v4 Shawn Lu
2012-02-03 21:31 ` Eric Dumazet [this message]
2012-02-03 21:39 ` Ben Greear
2012-02-03 21:56 ` Shawn Lu
2012-02-03 21:43 ` Shawn Lu
2012-02-04 7:44 ` Eric Dumazet
2012-02-04 8:06 ` Eric Dumazet
2012-02-04 18:15 ` Shawn Lu
2012-02-04 18:29 ` Eric Dumazet
2012-02-04 18:42 ` Shawn Lu
2012-02-04 19:09 ` Eric Dumazet
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